For Y2, in setup mode, after all lights stop blinking, press and hold the FORMAT button for 6 seconds.
For previous camera models:
- Slide your camera to SETUP mode, then press the UP arrow to view your pictures.
- Then press the MENU button. You can toggle between FORMAT and DELETE with the UP and DOWN arrows.
- Press OK while FORMAT is red, then follow prompts to confirm.
- After your camera says NO FILE, press the Up arrow on the camera to escape out of this view.
Note: formatting your card will erase all images from your SD card. But any pictures that are in your command center will remain there.